Cool ski. Or should we say, skis. With its interchangeable arms, the Z11 can be modified for increased or decreased power to suit your mood. It’s not a new concept: Rossi’s R11 Mutix uses interchangeable arms to customize turn radius. But testers were more impressed with the Z11. It skis well in either mode, with a solid platform and balanced behavior, especially in medium-radius arcs. "Gear junkies will love it," said Casey.